title: Unresolved questions concerning coronary care units.
mesh_terms: D003325:Coronary Care Units / Q000706:statistics & numerical data*; D003362:Cost-Benefit Analysis; D005069:Evaluation Studies as Topic; D006801:Humans; D009203:Myocardial Infarction / Q000401:mortality / Q000628:therapy; D011897:Random Allocation; D012306:Risk